Parabolic light tube for satellites
2025年9月10日
Special large star sensor lens for satellite
2025年9月10日The optical system of the fundus imaging device consists of an illumination system and an imaging system, Satellite purchase,where the illumination system is equipped with a fixed light source, a visible illumination light source, and a near-infrared focusing light source. Using the near-infrared light source for focusing allows for dilation of the eyes without the use of medication. Commercial satellite leasing,The imaging system is equipped with a focusing lens, which has a refractive compensation function of ±20D.
| Working distance | ＞24mm |
| Imaging mode | Near-infrared observation, focusing, visible light photography |
| Pupil size | Non-dilating 3mm |
| Retinal resolution | Central field of view better than 7 μm, peripheral field of view better than 15 μm |
| Range of refractive compensation | －20D～＋20D |
| Field of view | 45° |
| Imaging spectrum | Visible light: RGB colour (450-700) Near infrared: 780nm Stable light: 650nm |
| MTF | Greater than 0.2 at the resolution corresponding to the square line pairs |
